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Finding the Fourth Proportional to 368,486.85, 552,668.45 and 102,274.41

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Solution

The fourth proportional to 368,486.85, 552,668.45 and 102,274.41 is: 153,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,486.85 : 552,668.45 = 102,274.41 : x
  2. Step 2: Convert to fraction form
    368,486.85/552,668.45 = 102,274.41/x
  3. Step 3: Cross multiply
    368,486.85x = 552,668.45 × 102,274.41
  4. Step 4: Simplify right side
    368,486.85x = 56,523,839,137.99
  5. Step 5: Solve for x
    x = 56,523,839,137.99/368,486.85
  6. Step 6: Final answer
    x = 153,394.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.